SYSTEM AND METHOD FOR IDENTIFYING A LANDMARK
First Claim
1. A system for identifying a landmark, the system comprising:
- a. a field generator for generating a magnetic field;
b. an orthopaedic implant located within the magnetic field, the orthopaedic implant having at least one landmark and a longitudinal groove with a proximal end portion and a distal end portion;
c. a first magnetic sensor mounted to the orthopaedic implant at the distal end portion of the longitudinal groove and spaced apart from the at least one landmark a set distance;
d. a landmark identifier having a second magnetic sensor; and
e. a processor for comparing sensor data from the first and second sensor and using the set distance to calculate the position of the landmark identifier relative to the at least one landmark
3 Assignments
0 Petitions
Accused Products
Abstract
A system (10, 110) for identifying a landmark is disclosed. The system includes a field generator (16, 116) for generating a magnetic field, an orthopaedic implant (30, 130) located within the magnetic field, the implant having at least one landmark (31) and a first magnetic sensor (32) spaced apart from the landmark, a landmark identifier (18, 118) with a second magnetic sensor (20, 120) and a processor (12, 112) for comparing sensor data from the first and second sensor and using the set distance to calculate the position of the landmark identifier relative to the at least one landmark. The system allows for blind targeting of one or more landmarks.
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Citations
18 Claims
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1. A system for identifying a landmark, the system comprising:
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a. a field generator for generating a magnetic field; b. an orthopaedic implant located within the magnetic field, the orthopaedic implant having at least one landmark and a longitudinal groove with a proximal end portion and a distal end portion; c. a first magnetic sensor mounted to the orthopaedic implant at the distal end portion of the longitudinal groove and spaced apart from the at least one landmark a set distance; d. a landmark identifier having a second magnetic sensor; and e. a processor for comparing sensor data from the first and second sensor and using the set distance to calculate the position of the landmark identifier relative to the at least one landmark - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for identifying a landmark, the method comprising:
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a. providing an orthopaedic implant assembly having an orthopaedic implant with a longitudinal groove and a removable lead having a magnetic sensor attached thereto situated within the longitudinal groove, the orthopaedic implant having a proximal end portion, a distal end portion, and at least one landmark on the distal end portion; b. implanting the orthopaedic implant assembly in a patient; c. first installing transfixion elements in the proximal end portion; d. identifying the at least one landmark using a landmark identifier; e. installing a transfixion element in the at least one landmark in the distal end portion after first installing transfixion elements in the proximal end portion; and f. removing the removable lead.
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17. A graphical user interface, comprising:
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a. a first portion indicating drill depth relative to an implant; and b. a second portion indicating landmark identifier position relative to a landmark located on the implant.
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18. A system for identifying a landmark, the system comprising:
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a. a field generator for generating a magnetic field; b. an orthopaedic implant located within the magnetic field, the orthopaedic implant having at least One landmark; c. an insertion handle removably attached to the orthopaedic implant; c. a first magnetic sensor placed within the orthopaedic implant at a distal end portion and spaced apart from the at least one landmark a set distance; d. a landmark identifier having a second magnetic sensor; and e. a processor for comparing sensor data from the first and second sensor and using the set distance to calculate the position of the landmark identifier relative to the at least one landmark, wherein the first magnetic sensor is connected to the processor via the insertion handle.
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Specification